NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 580
ONVOY, LLC - OK 11
NEW CINGULAR WIRELESS PCS, LLC - IL 7
TELNYX LLC 1
T-MOBILE USA, INC. 1
OPENTACT INC. 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-03-03 580-394-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F GLENCOE OK
2021-03-03 580-394-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F GLENCOE OK
2021-03-03 580-586-1XXX 1000–1999Assigned WICHITA ONLINE, INC. - OK 258F WAURIKA OK
2021-03-03 580-806-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F KINGSTON OK
2021-03-03 580-806-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F KINGSTON OK
2021-02-26 580-645-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H ADA OK
2021-02-26 580-873-6XXX 6000–6999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H FORTTOWSON OK
2021-02-25 580-245-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IDABEL OK
2021-02-25 580-245-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IDABEL OK
2021-02-23 580-204-1XXX 1000–1999Assigned TELNYX LLC 073H BOSWELL OK
2021-02-22 580-205-4XXX 4000–4999Assigned TELNYX LLC 073H BENNINGTON OK
2021-02-22 580-367-9XXX 9000–9999Assigned TELNYX LLC 073H CADDO OK
2021-02-11 580-769-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SAYRE OK
2021-02-05 580-203-9XXX 9000–9999Assigned TELNYX LLC 073H FORTTOWSON OK
2021-02-03 580-203-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F FORTTOWSON OK
2021-02-03 580-203-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F FORTTOWSON OK
2021-02-03 580-225-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F ELK CITY OK
2021-02-03 580-228-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F WAURIKA OK
2021-02-03 580-228-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F WAURIKA OK
2021-02-03 580-257-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F TISHOMINGO OK
2021-02-03 580-257-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F TISHOMINGO OK
2021-02-03 580-288-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F KREMLIN OK
2021-02-03 580-288-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F KREMLIN OK
2021-02-03 580-289-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F RINGLING OK
2021-02-03 580-289-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F RINGLING OK
2021-02-03 580-316-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F MADILL OK
2021-02-03 580-316-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F MADILL OK
2021-02-03 580-325-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F HILLSDALE OK
2021-02-03 580-325-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F HILLSDALE OK
2021-02-03 580-329-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F CARRIER OK
2021-02-03 580-329-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F CARRIER OK
2021-02-03 580-345-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F SOPER OK
2021-02-03 580-367-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F CADDO OK
2021-02-03 580-367-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F CADDO OK
2021-02-03 580-386-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F DAVIS OK
2021-02-03 580-386-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F DAVIS OK
2021-02-03 580-396-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F MORRISON OK
2021-02-03 580-396-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F MORRISON OK
2021-02-03 580-403-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F STRATFORD OK
2021-02-03 580-406-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F HUGO OK
2021-02-03 580-406-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F HUGO OK
2021-02-03 580-407-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F IDABEL OK
2021-02-03 580-407-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F IDABEL OK
2021-02-03 580-410-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F WAPANUCKA OK
2021-02-03 580-410-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F WAPANUCKA OK
2021-02-03 580-417-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F FAIRMONT OK
2021-02-03 580-417-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F FAIRMONT OK
2021-02-03 580-440-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F KAW CITY OK
2021-02-03 580-440-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F KAW CITY OK
2021-02-03 580-535-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F GRANITE OK

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.